Profile PictureJosef Strzibny

Kamal Handbook

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Kamal Handbook: The missing manual is a short and practical book on Kamal deployment tool. It's the first and currently the only book about Kamal.

Check out the book's website for more information.

Last update: 29. 6. 2024 for Kamal 1.7.3.

What will you learn?

First, we explain what Kamal is, look how Kamals works on the surface, and go through the first deploy. Then we’ll dive more into Kamal’s server configuration and use the new knowledge for deploying 2 more complex examples. At last, we have a look on logging, debugging, CI/CD, and handling backups.


Donal McBreen, Lead Programmer at 37signals, and one of the main contributors to Kamal, wrote a foreword to the 1st edition.


  1. Introduction
  2. Workflow
  3. Prerequisites
  4. Installation
  5. The first deploy
  6. Server configuration
  7. Environment
  8. Traefik
  9. Destinations
  10. Volumes and data
  11. Assets
  12. Accessories
  13. Logging
  14. Maintenance
  15. Examples
  16. Debugging
  17. CI/CD
  18. Cron
  19. Backups
  20. Wrap-up

What you'll get?

You'll get PDF and ePUB copies. The ePUB is tested on Apple Books and Kindle.


Will I get free updates?

1st edition will get free updates and errata for Kamal 1.x versions. The last 1.1 revision of the book targets Kamal 1.7.3.

Is this book just for Rails?

Kamal is framework-independent and so I wrote the book in a general way, only mentioning assumptions about one's Dockerfile. Bring your Dockerfile and you are good.

Is this only for Ubuntu?

Kamal doesn't tie itself with any particular Linux flavor so you can use your favourite. The small provisioning examples in the book are tested against Ubuntu 22 LTS.


Hello, I am Josefa formal Linux packager at Red Hat and an author of Deployment from Scratch. Once I found Kamal, I dived in and never looked back. I am now running everything with Kamal for myself and my clients. In the book I am sharing everything I know, so you are confident to do the same.

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Kamal Handbook

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